The M-22 gear teeth are cut at a noticeably lower angle (not quite at a straight angle as some people say). This lower angle of the teeth imparts greater strength to the gears, but it also increases the noise caused by the meshing of the gears. This higher level of noise is where the nickname "Rock crusher" originated.

Apr 30, 2009· M-22 "Rock Crusher" Identification. The M-22 close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. The M-22 was only produced in a close-ratio version, so it will not appear on models with high rear-axle ratios (3.55 or lower numerically) unless someone has ...

Times and requirements have changed making both the M21 and M22 the closest ratio production 4 speeds ever produced but also not practical for today's driving habits unless road racing is your thing. The new Muncies being …

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m 22 muncie rock crusher parts & accessories HP200 MAIN FRAME PIN. muncie m22 rock crusher parts and accessories ...

Muncie Rock Crusher 5 Speed Transmission. This a BRAND NEW SUPERCASE M22 Muncie Rockcrusher Style Transmission This is a BEEFY version of the original Rock Crusher transmission Most all the weak points of an original Muncie have been solved by the Super Case design The Supercase has extra casting in all the known weak areas.Chevy Transmissions …

k-star. The M20 / M21 transmissions when in good condition are a fairly quiet transmission. If you want to know what a M22 sounds like get the movie 2 lane blacktop. There is a spot in the movie that you get a real good ear shot of a M22.... or you can come to york PA and i'll take you for a ride in my 68 and you can get a first hand ear full ...

He mentioned he had a M22 rock crusher in his car, and how rare it was because only a few of the M22's were "Rock Crushers". ... Someone, somewhere on planet Earth made the comment that the M22 sounded like a rock crusher. The name stuck, and like many other nicknames that have occurred in the past, ... If the transmission is in the car, and ...

The M22! This iconic transmission is based upon the infamous "ROCK CRUSHER" Transmission made famous in the 60`S AND 70`S by being installed in the L-88`S, BIG BLOCK 425 HP Factory Muscle Cars and HOT RODS of …

Master Rebuild Kit. Muncie 4 Speed Transmission M20, M21 & M22 with 1" counter shaft bore. High Performance Forged Synchronizer Rings made by Synchroking! 1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings. 2-Key & Spring Kits. 1- Set of French Locks. 1-Counter Shaft Pin 1". 2-Extension Housing Bushings 27 Spline ...

Find many great new & used options and get the best deals for Chevy GM Muncie M22 Rock Crusher Close Ratio 4 Speed Transmission 10 Spline at the best online prices at eBay! Free shipping for many products! ... item 3 Muncie M22 Gear Set 2.20 Ratio Rock Crusher 10 Spline Input Fits M20 M21 4 Speed Muncie M22 Gear Set 2.20 Ratio Rock Crusher 10 ...

Muncie M22 "Rock Crusher 4 SPEEDS FROM 1965 TO 1974: This page is devoted to OEM Complete units; New aftermarket units and OEM parts and NOS parts. ... We use original M22 Cases and M22 Gear Sets or rebuild …

$80.00 to $1450.00 (5 offers) - Buy MUNCIE 3925660 Gears Transmission Crusher 3950306 M-22 . For Models: 1969 . For Years: 1969-2022 . ... Buick and Pontiac and is a rare opportunity to own a virtually brand new m 22 close ratio rock crusher transmission with a completely new gear set. ... Sell it all as is. Muncie transmission m22 close ratio ...

Any RPM x new differential gear / existing gear = effective RPM. Simplified, I'll use 3,500 RPM for the baseline. 3500 x 3.08 / 4.10 = 2629 RPM. Using an M22Z with a 3.08:1 is like having an OD with a 4.10:1 AND you still have the takeoff …

1972 M22 P2T03C 3925661 Rock Crusher Muncie 4 Speed Transmission Case Dec 3rd Opens in a new window or tab. Pre-Owned. C $541.68. or Best Offer. ... Chevy OEM Muncie 4 Speed HD Reverse Shaft Lever M22 Rock Crusher Chevelle Vette Opens in a new window or tab. Pre-Owned. C $87.12. or Best Offer.

Home of the world's best 4 speed muncie transmissions and parts. We also offer muncie rebuild kits, racing parts and m22 rock crusher transmissions. 4-speed "Rock Crusher" questions. Apr 26, 1997 · ratio the weaker the gear. With the M-22 and 2.21:1 1st a typical rating is something like 400ft-lbs.

This is a Very Rare and Completely and Freshly Rebuilt M-22 Transmission with REAL GM Rock Crusher Gears for 1970 1971 and 1972 GM Vehicles including, Chevy, Corvette, Camaro, Chevelle and other GM vehicles of that vintage These first came out in the 1970 Chevelle with the fine spline input and they were then released in the 1971 and 1972 Corvettes and other GM …

Many people have guesses about deciphering M-22s. Like grooves in the input shaft and numbers and etc etc... The only way to tell is to open the case and measure the gear angle from the shaft centerline. M-20 and M-21 have 45 degree gears and M-22 have 22.5 degree gears. Fresh M-22s are going for $1300-$1600.